Home / 15,138.59-20,883.42-8,847.32

Finding the Fourth Proportional to 15,138.59, 20,883.42 and 8,847.32

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Solution

The fourth proportional to 15,138.59, 20,883.42 and 8,847.32 is: 12,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.59 : 20,883.42 = 8,847.32 : x
  2. Step 2: Convert to fraction form
    15,138.59/20,883.42 = 8,847.32/x
  3. Step 3: Cross multiply
    15,138.59x = 20,883.42 × 8,847.32
  4. Step 4: Simplify right side
    15,138.59x = 184,762,195.02
  5. Step 5: Solve for x
    x = 184,762,195.02/15,138.59
  6. Step 6: Final answer
    x = 12,204.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.